Polymer-Supported Diaryl Selenoxide and Telluroxide as Mild and Selective Oxidizing Agents
作者:Nan Xing Hu、Yoshio Aso、Tetsuo Otsubo、Fumio Ogura
DOI:10.1246/bcsj.59.879
日期:1986.3
Polystyrene-bound diaryl selenoxide and telluroxide have been prepared, which behaved as mild oxidizing agents for thiols to disulfides, phosphines to phosphine oxides, hydroquinone and catechol to p- and o-benzoquinones, and thioketones to oxo compounds. The telluroxide completed these reactions in shorter periods or under milder conditions than the selenoxide. In addition, they effected novel solvent-dependent
已经制备了聚苯乙烯结合的二芳基硒氧化物和碲氧化物,它们作为硫醇到二硫化物、膦到氧化膦、对苯二酚和邻苯二酚到对和邻苯醌以及硫酮到氧代化合物的温和氧化剂。碲氧化物在比硒氧化物更短的时间内或在更温和的条件下完成这些反应。此外,他们还影响了硫代酰胺与 1,2,4-噻二唑或腈的新型溶剂依赖性反应,包括硫脲。在非酸性溶剂中,脱硫生成腈优先于氧化二聚生成 1,2,4-噻二唑,但酸性溶剂(如乙酸)促进了后者的反应。